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The $300 GoPro Hero3+ Silver also is improved with a faster processor, 15 percent smaller design, a faster processor and Wi-Fi performance, and support for faster 1080p video at 60 frames per second and 720p video at 120FPS.

The GoPro sports camera business, which was attractive enough for to draw a $200 million investment from electronics manufacturer Foxconn, is based on the desire for budding adventurers to record their activities without worrying about delicate electronics that have to be extracted from a backpack or protected from rainwater. Three GoPro videos are uploaded to YouTube per minute on average these days, the company said. GoPro's products now are a fixture for recording TV shows, too.

GoPro's business also involves a wide range of accessories to mount the cameras. The company also announced a new general-purpose camera clamp, a chest harness young children can wear, and a clip system for use on things like belts and baseball helmets.

Also new is the GoPro Studio 2.0 for Windows and OS X. It adds templates into which people can drop video clips to make it easier create a more finished product, including music.